Kovačević Strahinja;  Karadžić Banjac Milica;  Anojčić Jasmina;  Ajduković Jovana;  Podunavac-Kuzmanović Sanja;  Gadžurić Slobodan;  Jevrić Lidija:   The application of phenyl column as a new challenge in anisotropic lipophilicity determination of 17-picolyl and 17-picolinylidene androstane derivatives by RP-UHPLC method.